Bitcoin (BTC) is a digital currency and a decentralized form of money that was created in 2009 by an anonymous person or group of people using the pseudonym Satoshi Nakamoto. It operates on a peer-to-peer network known as the blockchain, which is a distributed ledger that records all Bitcoin transactions. Bitcoin is often referred to as a cryptocurrency because it uses cryptographic techniques to secure transactions and control the creation of new units. It is not issued or controlled by any ...